In a terminal (200), a HARQ-ACK generator (208) generates one or more response signals for respective code block groups based on a parameter included in each of a plurality of downlink control signals, the code block groups forming each of a plurality of transport blocks to be assigned by the plurality of downlink control signals, the parameter relating to the number of code block groups. A transmitter (211) collectively transmits the response signals for the respective code block groups. A value of the parameter herein is to be configured, at least using a first granularity coarser than a second granularity in units of the code block groups.